abstract = "This paper contains results of a research project
aiming at modelling the phenomenon of customer
retention. Historical data from a database of a big
mutual fund investment company have been analysed with
three techniques: logistic regression, rough data
models, and genetic programming. Models created by
these techniques were used to gain insights into
factors influencing customer behaviour and to make
predictions on ending the relationship with the company
in question. Because the techniques were applied
independently of each other, it was possible to make a
comparison of their basic features in the context of
data mining.",